Class 8 Exam > Class 8 Questions > Sound is produced by aa)moving objectb)statio...
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Sound is produced by a
- a)moving object
- b)stationary object
- c)vibrating object
- d)rotating object
Correct answer is option 'C'. Can you explain this answer?
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Sound is produced by aa)moving objectb)stationary objectc)vibrating ob...
Sound Production
Sound is produced by a vibrating object. When an object vibrates, it creates sound waves that travel through the air or other medium. Here's how sound is produced by a vibrating object:
Vibrating Object
- When an object vibrates, it moves back and forth rapidly.
- These vibrations create disturbances in the surrounding air molecules.
- The air molecules then collide with each other, transmitting the energy of the vibrations.
- This transmission of energy in the form of sound waves is what we perceive as sound.
Example
- A classic example of sound production by a vibrating object is a guitar string. When a guitar string is plucked, it vibrates at a certain frequency.
- These vibrations travel through the air as sound waves, reaching our ears and allowing us to hear the sound of the guitar.
Therefore, the correct answer to the question is that sound is produced by a vibrating object.
Sound is produced by a vibrating object. When an object vibrates, it creates sound waves that travel through the air or other medium. Here's how sound is produced by a vibrating object:
Vibrating Object
- When an object vibrates, it moves back and forth rapidly.
- These vibrations create disturbances in the surrounding air molecules.
- The air molecules then collide with each other, transmitting the energy of the vibrations.
- This transmission of energy in the form of sound waves is what we perceive as sound.
Example
- A classic example of sound production by a vibrating object is a guitar string. When a guitar string is plucked, it vibrates at a certain frequency.
- These vibrations travel through the air as sound waves, reaching our ears and allowing us to hear the sound of the guitar.
Therefore, the correct answer to the question is that sound is produced by a vibrating object.
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Sound is produced by aa)moving objectb)stationary objectc)vibrating ob...
Why is sound produced by a vibrating object?
- Vibrations create sound: When an object vibrates, it creates disturbances in the air molecules around it. These disturbances travel through the air in the form of sound waves.
- Frequency of vibrations: The frequency of the vibrations determines the pitch of the sound produced. Higher frequency vibrations create higher pitched sounds, while lower frequency vibrations create lower pitched sounds.
- Amplitude of vibrations: The amplitude of the vibrations determines the volume of the sound produced. Greater amplitude creates louder sounds, while smaller amplitude creates softer sounds.
- Human ear: The human ear is sensitive to these sound waves and can detect them as audible sounds. The ear converts these sound waves into electrical signals that are interpreted by the brain as sound.
- Examples of vibrating objects: Some common examples of vibrating objects that produce sound include musical instruments, vocal cords, and speakers.
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Sound is produced by aa)moving objectb)stationary objectc)vibrating objectd)rotating objectCorrect answer is option 'C'. Can you explain this answer?
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